In this online video we up grade a simple doorbell to ship notifications above WiFi. With some energy harvesting no battery is demanded. An optional Node-Pink server translates the sign and activates a visible notification remotely. This not only helps if the bell is not audible but can also be use for hearing disabled people today.
Code and Noder-Pink flow can be identified right here:
https://github.com/bitluni/Doorbell
Inbound links to parts and applications (affiliate inbound links):
ESP8266 D1 Mini ($3.50): https://aliexpress.bitluni.internet/d1mini
Versatile RGB LED Matrix ($12.20): https://aliexpress.bitluni.net/flexRGB
AC to DC PSU with Barrel Jack: https://aliexpress.bitluni.net/ACtoDCBarrel
Small DC-DC Converter: https://aliexpress.bitluni.internet/smallDC2DC
Electrolytic Capacitors: https://aliexpress.bitluni.internet/elco
Zener Diode Set ($4): https://aliexpress.bitluni.net/zener
Full Bridge Rectifiers: https://aliexpress.bitluni.net/fbr
LED Projector ($72): https://aliexpress.bitluni.net/projector
My digicam and lens (4k 60fps):
https://amazon.bitluni.web/gh5
Zoom H6 Audio Recorder:
https://amazon.bitluni.net/h6
plz share 🙂
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